Thermo-mark security labels
Heat resistant tamper evident security labels
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Please note that the online prices apply exclusively to self-checkout transactions and do not extend to phone, email, in-store orders and customers with credit terms.
Product Information
B-Sealed's X-Safe Thermo-mark Heat Resistant Tamper Evident Labels are specially designed security labels for applications where both high security tamper evidence and resistance to elevated temperatures are required. The labels provide a clear visual indication if an attempt is made to remove, disturb or interfere with the label, while maintaining their integrity.
Once applied, the label forms a strong bond with the surface. If removal is attempted, the label activates a highly visible VOID message or tamper pattern, immediately indicating that the label has been disturbed. This provides a simple and effective way to identify unauthorised access, opening or interference.
Unlike standard tamper evident labels, Thermo-Mark labels are designed to withstand exposure to heat, making them suitable for applications where conventional security labels may deteriorate or lose their effectiveness. This makes them particularly useful for equipment, components, packaging and assets that may be exposed to elevated temperatures during operation, storage, transportation or processing.
Thermo-Mark labels can also be customised with serial numbers, barcodes, QR codes, logos, text or other identification markings, depending on the application. This allows businesses to combine tamper evidence with asset identification, traceability and authentication.
Customisations
Security Seals Online offers a diverse range of customisable security seals tailored to your specific needs. Whether you have your own artwork or require a unique design, our services are designed to meet your requirements with prompt delivery.
Enhance security by adding your own markings, logo, user instructions, or warning messages to the seals. We provide various styles, including pull-tight seals and security labels. Please be aware that our security seals typically come with a serial number and manufacturing markings.
Enjoy a rapid turnaround, thanks to our local manufacturing facilities, with most orders dispatched within 24-48 hours. While we strive for this quick turnaround, unforeseen delays may occur, in which case we'll promptly inform you.
For certain custom requests, a minimum order quantity may apply. Should you require assistance with customisation, don't hesitate to reach out via email, and we'll respond promptly to assist you.



Adhesive type
TOTAL-TRANSFER - where an adhesive layer with a void message is left behind on the surface to show evidence of tampering. The adhesive layer may be cleaned off on some surfaces to allow reuse of the sealed object. The security label also exhibits the void message to prevent the reuse of the label. By leaving a void message on the surface, recipients will know that the object has been accessed and tampered with.

Comparison Table
| Permanent | Total-transfer | Non-transfer | Dual Colour | Destructible | Holographic | Water sensitive | Heat embossed | High temperature | Security tapes | Access indicator labels | Asset labels | Bottle & Jar labels | Clear labels | Decorative labels | Food delivery labels | |
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| types | paper, paper WLK, fluro, kraft, dissolvable, cellulose bio+ |
polyester | polyester | polyester, paper bio+ |
polyester | polyester | paper | polyester | polyester | polyester, silica-based |
polyester, paper |
polyester, paper |
polyester, paper |
polyester, cellulose bio+ |
polyester, paper |
polyester, paper |
| security level | low to medium low | medium to high | medium to high | medium to high | medium to high | medium low to high | low | low | low | medium to high | low to high | low to high | low to high | low to medium | low to high | low to high |
| void markings | no | yes: high residue | yes: no residue | yes: high residue | yes: ultra destructible, destructible |
available: void transfer, honeycomb transfer, one-time use, permanent use |
yes: water ingress, water authentication |
yes: heat sensitive | no | available | available | available | available | available: partial-transfer | available | available |
| security cuts | available | available | available | available | no | available | no | no | no | available | available | available | available | available | available | available |
| lamination | available | available | available | available | no | available | no | no | no | no | available | yes | available | available | available | available |
| uv visible printing | available* | available* | available* | available* | available* | available* | no | no | no | available* | available* | available* | available* | available* | available* | available* |
| options & customisations | colour, markings |
colour, markings, void markings |
colour, markings, void markings |
colour, markings, void markings, void layer colour |
colour, markings |
silver or gold layer, engraved markings, markings, holographic features & techniques |
permanent label, destructible label, void label |
markings | markings | colour, markings, void markings, perforation |
colour, markings, void markings |
colour, markings, void markings |
colour, markings, void markings |
colour, markings, void markings |
colour, markings, void markings |
colour, markings, void markings |
| features | conventional, tamper evident |
tamper evident | tamper evident | tamper evident | tamper evident | tamper evident, anti-counterfeiting |
tamper evident, anti-counterfeiting |
anti-counterfeiting | conventional | tamper evident | tamper evident | tamper evident | tamper evident | conventional, tamper evident |
conventional, tamper evident |
conventional, tamper evident |
Specifications
| Features | Heat resistant security label construction. Provides clear and visible tamper evidence. Activates a VOID message or security pattern when removal is attempted. Available with serial numbering and identification markings. Barcode and QR code options available. Custom logos, text and branding available. Supports product and asset traceability. Suitable for high-value and security-sensitive items |
| Material | Polyester |
| Colours | Blue matte Red matte White matte |
| Dimensions | Customised |
| Markings | Customised markings available. Ask one of our product specialist for some options. |
| Print method | Thermal transfer overprint Full colour laser digital printing |
| Adhesive type | Pressure sensitive partial-transfer adhesive |
| Extras | Additional laminate layer available |
| Applications | Industrial machinery and equipment Electrical equipment and control panels Electronic components Automotive components Engines and mechanical equipment Manufacturing equipment Motors, pumps and generators Appliances and equipment exposed to heat Product warranty seals Service and maintenance points Calibration and inspection points High-value assets Industrial containers and packaging Security-sensitive components Asset identification and traceability |
| Customisations | Colour Custom markings Colours Numbering Barcode 2D codes & QR codes |
| For more information | bsealed.co/thermomark |













